This occurs when the size of one pupil is bigger than the other. Nearly 20 percent of the population may have this condition. In absence of any other symptoms, you may want to compare your current pupil size with some older photographs of yourself to understand the change. In rare cases, this could be a sign of a more serious problem if anisocoria suddenly appears and for no apparent reason.
This condition occurs when a part of your eye fails to form the natural way prior to birth. In the iris, a coloboma may result in the pupil becoming abnormally long, sometimes giving it the shape of a keyhole.
THIRD CRANIAL NERVE PALSY
In this serious condition, one pupil may dilate. It usually occurs because of the pressure on one of the nerves that control your movement of the eye. If you also suffer from double vision and a headache, this may indicate aneurysm (a weak site in a blood vessel wall). If the aneurysm grows, it can rupture and leak blood into the space enveloping your brain.
TUMOR OF THE PITUITARY GLAND
The pituitary gland controls various other glands, which produce hormones. Your pupil may appear bigger if a tumor occurs in this gland.
Your pupil will shrink if this condition occurs. This problem may exist by birth, but in many cases it occurs when something affects the nerves surrounding your eyes.
In this condition, one pupil becomes bigger than normal and reacts slow to light. It may be difficult to determine the cause, but it can happen due to lack of blood flow or may result from an injury.
The size of the pupils may sometimes differ or the pupils may become larger following a head injury. If the size of pupils changes after a head injury, you should see a doctor immediately.
Swelling and irritation around your pupil may occur in this condition. In absence of treatment, this can result in the development of scar tissue. Consequently, the shape of the pupil can become irregular.
Eye surgeon Dr. Jennifer Hui receives patients from Palm Springs, Palm Desert, La Quinta, Coachella Valley, Riverside, Redlands, Yucaipa, Loma Linda, and nearby areas for safe and innovative eye care procedures.
For more information about cosmetic surgery and nonsurgical eye treatments and procedures performed by Oculoplastic Eye Surgeon Dr. Jennifer Hui for patients in and around Palm Springs, La Quinta, Coachella Valley, Palm Desert, Riverside, Redlands, Yucaipa, Loma Linda, California and surrounding areas call 760.610.2677 or click here to contact us.